Bottle-blowing machine.



J. vv. LYNCH.'

BOTTLE BLOWING MAGHINE.

APPLIEATION FILED JUNEZ, i916.

Patented July 10, 1917.

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stra s JAMES W. LYNCH, F EAST LUIS ILLN'OS, ASSEGNOR TO @BEAR-MEISTER GLASS CGMPANY, OF ST. LOUS, MSSORI, A CORPORATON OF MXSSOURI.

BOTTLE-BLOVNG MACHINE.

Specification of Letters Patent. Fomento@ July lill, lllllil..

' Application filed J'une 26, 1916. Serial No. 105,802?.

' the bottle blank.

To all whom it may concern.'

Be it known that I, JAMES W. LYNCH, a citizen of the United States, and a resident of the cityl of East St, Louis, in the county of St. Clair and vState of illinois, have invented a new and useful Improvement in Bottle-Blowing Machines, of which the following is e specification.

This inventionrelates to glass molding machines, and particularly to machines for blowing glass bottles, wherein the partly formed bottle blank is held in a moldiand blown to its proper size. I

The object of the invention is to provide a device whichA will enable the operator to position rapidly and accurately the bottle blank in the mold. A further object of the invention. is to prevent the breakingl of the bottle blanks and wearing of the molds caused by striking the sides of the molds.

The invention consists in means for positioning the bottle ,blanks centrally in the molds, and thereby to reduce the liability of breakage of the bottle and wear on the molds.

The invention further consists in a rotating table for the molds, and a swinging support or hanger for receiving theneck of a' bottle and suspending' itin position to be grasped by the molds, which are successively brought into position by the intermittent ron tation of the table. lt also consists in the arrangement of parts for bringing the hanger arm backinto position after leaving lt also consists in the parts and arrangements hereinafter more fully described and claimed.

In the accompanying drawing, which forms part of this specification and wherein like numerals refer to like parts in the several views,

Figure l is a fragmentary 4plan view of a molding machine, showing one of themolds in open position and the bottle blank in position on the hanger arm;

Fig. 2 is a fragmentary plan view of the.

same in moved position, the mold being closed and the hanger about to return to its normal position; and

Fig; 3 is a vertical section through the machine on the line 3--3 of Fig. 1.

The device shownl in the drawings c'omprises a frame l, which has 'a vertical column 2 upon which is mounted a table 3 which is arranged to' turn around the colposition.

Mounted on the vertical column 2 is a cross-arm 6, which projects out over the tops of the molds. The cross-arm isy adjustable vertically so as to clear the tops 'of molds of different heights and is held in position by a pinch bolt 7. The cross-arm has a vertical slot 8 in its outer end which receives an adjustable pivot bolt 9 on which is pivoted a thin spring steel hanger plate l0. The pivot bolt has a head l1. on its lower end which supports the hanger plate clear of the tops of the molds in normal position, and at the 4saine time leaves it free to pivot. The pivot bolt on which the hanger plate is mounted may be adjusted radially in the slot 8 to accommodate different size molds, and is locked in `position by a lock nut l2. The hanger plate projects over the top of the mold which is ready to receive the bottle blank, and has a notch 13 at its front edge which 'is shaped to embrace the neck of the bottle blank lli for suspending it in correct position to be grasped by the sides of the mold.

The weight of the bottle blank bends the hanger plate down until it rests upon the top of the mold. The rotation of the table and mold swings the hanger plate laterally far enough to permit the neck ofthe bottle blank to disengage itself from the notch 13. A spring l is provided ior returning the hanger pla-te into position to receive the bottle blank for the nextmold. One end of the spring is fastened to a pin projecting down from the hanger plate and the other end is fastened to a pin on the under side of the .erossearm.. The cross-arm has a'stop pin 16 on its under side which stops and holds the hanger plate inthe proper position.

ln the operation of the device, the table uponrwhich the molds are mounted is turned intermittently, and the open molds are brought successively into position to receive the bottle blank. The neck of the bottle blank is then placed in the notch in the hanger plate and the mold is closed. The table is then turned, whereupon the hanger plate swings on its pivot, and the neck of in the hanger plate.

the bottle blank is carried out of the notch The spring then returns the hanger plate to its no1-mal position against the stop pin, ready to receive the neXt bottle blank.

Heretofore the bottle blanks have been inserted in position by hand and the una voidable inaccuracy in positioning the bottle blank in the mold has caused the bottle blank to break and the molds to rapidly become Worn. It can be readily seen from the foregoing description that my device increases the output of the machine and causes a great saving in bottle blanks and molds.

What I claim as my invention is:

l. A positioning device for bottle molding machines comprising a horizontal crossarm located above and extending in the direction of the molds, a spring hanger plate pivotally secured to the under face of said cross-` arm, said hanger plate extending` above and across the top of the mold and provided. with a notch in its front edge to receive the neck of a bottle blank and position it centrally in the mold, and means for normally retaining said spring hanger plate withits notch centrally over said mold.

2. A molding machine comprising a frame, a mold carrier supported thereby, said carrier being rotatable around a vertical axis, molds on said carrier, and vertically yieldable means on said frame for cushion-- ing bottle blanks and positioning them in the molds, said means being operated by the Weight of the bottle blanks and rotationv of said carrier and bottle blank.

3.V A positioning device for bottle molding i machines comprising a horizontal crossarm, a pivot on said cross-arm, a spring metal hanger plate pivoted for horizontal movenient on said pivot, a notch in said hanger plate toembrace the neck of the bottle, said hanger plate being adapted to deliect under the Weight of the bottle and to swing on said pivot for allo-wingthe bottle to be carried out of the notch, and means for returning the hanger plate to its normal position.

Signed at St. Louis, Missouri, this 24th day of June. 1916.

JAMES l/V. LYNCH. 

